[cheers and applause] >> nineteen-year-old dzhokhar tsarnaev was found hiding in a boat in a yard in watertown, 1/2 last night. arrested after boston suburbs were put on a day-long lock down. day-long lock down. more than 1 million residents told to stay inside as s.w.a.t. teams went door to door searching for the suspect. >> it's unbelievable. i was cooped up in my house for the last almost 24 hours just wondering if the guy was in my back yard, if he was in my garage, you know, or if he was in my neighborhood. >> and he was. cowering, bleeding after a shootout where police that left his 267-year-old brother tamerlan dead. police said they tracked them down after they execute an m.i.t. officer and then led police on a wild chase. tsarnaev, the ethnic cheffian and u.s. citizen who lived here for more than a decade got away, but not for long. his arrest praised by the president. >> we've closed an important chapter in this tragedy. >> and by this community still in mourning. >> it brings a sigh of relief, and i think it really allows us to start the healing process. >> and the suspect